Sled-track



1 use the same.

UNITED srArs-s PATENT OFFICE? :tno e, srnacxs, or infierire;y NEBRASKA.

- y sLED-TRACK. i

Be itv known that I, Lno citizen of the United States, residing at lWayne, in the ycounty of Wayne, State of vNebraska, have r'invented certain new and useful Improvements in Sled-Tracks, and

rIdoV hereby declare the following to be a full, clear, and exact description of the in vention, such aswill enable others skilled in the art to whichit appertains', toinalre and rlhis invention relates improvements 1n trackways and particularly to trackways used in connection with sleds One object of theinvention istoA provider*V a traclrway which is especially adapted for -use in barns or other outbuildings, to facilitate the bringing into the barns of loads of :materialy for storage, whichare contained on sleds. i i Anothervobject resides in the `novel and improved manner in which the rollers vof the trackway are mounted in the side mein-A bers thereof.V

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing. y y f,

In the drawing:A Figurel is a side elevation of a track-y way madein accordance withthe'invention.

Fig. 2 is a top yplan View of thetraelrway.

y Fig. 3 is afvertical transverse section onv the line 3 3 of Fig.` 2. i

Fig. 4 is a vertical vlongitudinal central sectional view through onefof the side menibers of the trackway, on the line,` of FigQ. l y Y Referring particularly to the accompany# ing drawing, 10 represents a pair of longi` tudinally extending and parallel side members, the oppositeends of each of which are yinclined downwardly toward the floor on which themeinbers are placed; 1n `each of .themembers 10 there are formedthe longitudinal 'series of regularly spaced `openings l. 11, those of one member being in transverse alinement with those of the other side member. rlransversely extending bars or rods `12 have their opposite ends "disposed through the side members and each 1sv to new and useful.

, A .'trackway comprising Witnesses:

formed y with the stop shoulders, 13 bearing against the ,inner faces of the side mem-V bers, and the nuts 14, engaged on theirtends, which bear against the outer faces of the Specification of LettersPatent. Patient-,9d Biggy 10, 1921 l g applicati@ mea February 1, 1921.` serial N. 441,629.v i

members, to; hold-the members in properly spaced parallel relation.

`The surrounding wall ofeach ofthe open- ,i y. 150' ings 11 is formed with a channelyl in whichV are arranged the series of bearing balls 16.

Extending transversely between the side members 10 are lthe longitudinal series of rollers 17, the pintles or .trunnions 18 of which are disposed through the alined open-l ings of the members and centrally `of the series of bearing balls. v

By this construction vthe rollers rotatevery freelywhereby the runners of the sled 19 will readilyslide thereover.

The traclrway is especially useful in a barn where a load-ofgrain is brought thereintolon a sled, or bob sled." Ordinarily, this sled must be dragged along the floor of the barn by the 'animals pulling thek same. As

this is a tedious task,` the animals sometimes k*slip and", fall, with the result that theyv susltain broken legs, orother serious injuries.

Byreason of the fact that the endsof the side members are inclined, theV sled will be moreeasily drawn up onto the rollers, and v,without jar or jerk. j

1What is claimed is: y y f 's a pair of 'side members each having its opposite kends inr clined downwardly and" formed with longitudinal series fof openings, the sur'` rounding wall; of each, openingi being formed with a bearing ball receiving chan- Y n 90 i nel, thev openings of one member. alining` with thefopenings ofthe other member, bracing-,and spacing rods extending between andrconnected to the side members,

and transverse rollers extending betweeny the side members and each having trunnions on its'opposite ends rotatable within series ofbearing balls of alined openings. i

In testimony whereofplafxmy signaturefin the presence of two witnesses.

Lno e. srnncxs.

JOHN JnNVIK, Jr.,k a NINA` THoMPsoN.

will'. 

